Rust

Add exponential backoff and log suppression for scheduler disconnection #59

Job	Run time
test linux crates	6m 18s
windows test	15m 33s
Clippy (amd64, stable)	3m 44s
macos test	9m 18s
Check Cargo.toml formatting (amd64, stable)	1m 13s
linux build test	3m 48s
verify benchmark results (amd64)	16m 25s
test linux balista	5m 51s
check linux workspace	2m 42s
Lint	36s
cargo doc	3m 45s
	1h 9m 13s

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